Ceramic coating ozone generating tube and preparation method thereof

Abstract

The invention discloses a ceramic coating ozone generating tube and a preparation method thereof, which belong to the technical field of ozone generating devices. The tube comprises an internal electrode, an external electrode, a dielectric layer bonded on the external surface of the internal electrode and a discharge gap formed between the dielectric layer and the external electrode, and is characterized in that: the dielectric layer is a ceramic dielectric insulating coating. The ceramic coating ozone generating tube has the advantages of high dielectric constant, high insulating strength (voltage resists up to 10,000 to 12,000V / mm) and high oxidation corrosion resistance. The provided preparation method has fewer process steps and mild preparation conditions, can ensure the technical effect of the ceramic coating ozone generating tube and is suitable for industrial batch production.

Description

technical field [0001] The invention belongs to the technical field of ozone generators, in particular to a ceramic-coated ozone generator and a preparation method for the ceramic-coated ozone generator. Background technique [0002] Ozone generators, especially large-scale ozone generators, are widely used in industry. More specifically, they have good application prospects in water treatment, chemical medicine, papermaking and environmental protection industries. [0003] The mechanism of action of the ozone generator is not unfamiliar to the industry, and it can also be understood in more detail through the description of the background technology column of the ceramic ozone tube disclosed in the Chinese utility model patent authorization announcement number CN2741957Y. The ozone generating tube is referred to as the ozone tube, which is the core unit of the ozone generator. Studies have shown that the ozone production rate of the ozone generator is directly proportional...

AI Technical Summary

Problems solved by technology

[0004] At present, in my country, the dielectric materials of ozone tubes used in ozone generators are still mainly quartz glass and enamel. Due to the disadvantages of low dielectric strength and easy breakdown of these dielectric materials, large-scale ozone generators have high energy consumption and ozone Low yield, large equipment volume and high failure rate of ozone tube greatly affect the reliable operation of the whole machine

Since the late decades of the last century, France and Germany have devoted themselves to research on the ozone tube dielectric material and its preparation method, but, perhaps for the sake of technical secrecy, there is no detailed report in the media such as literature

[0005] The ceramic ozone tube technical scheme disclosed by the aforementioned CN2741957Y adopts the ceramic dielectric layer of 1-2mm plated on the outer wall of the inner electrode in the mode of plating. Pollution; according to the teaching of the patent specification, it is difficult to coat the ceramic powder material on the outer wall of the inner electrode, because the ceramic is non-conductive, so it is difficult to realize in the process

[0006] Invention Patent Application Publication No. CN101289168A introduces a new type of ozone tube, which is made of polytetrafluoroethylene and is set outside the inner electrode. Because the material used in this scheme is polytetrafluoroethylene, the dielectric constant will not show satisfactory results

However, no corresponding technical revelation has been given in the published literature so far, and no relevant reports of success have been heard.

The current situation is that the ozone generating tubes for large-scale ozone generators mainly rely on foreign imports, and the price is very expensive. Therefore, from the perspective of industrial independence, it is necessary to explore

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